T0777 Attachment 5 - Spreading Services Guide.pdf

This document is the Solid Chemical Application Guidelines for an Effective Anti-icing Program prepared by the New Jersey Department of Transportation's Winter Maintenance Program. The guidelines are adapted from the Manual of Practice for an Effective Anti-Icing Program originally developed by the Federal Highway Administration (FHWA) and the US Army Cold Regions Research and Engineering Laboratory, Corps of Engineers in 1996. The document serves as a technical resource for New Jersey's winter road maintenance operations.

The guidelines provide operational protocols for applying solid de-icing chemicals across five distinct weather event scenarios: light snow storms, moderate or heavy snow storms, frost or black ice conditions, freezing rain storms, and sleet storms. For each weather event, the document specifies application rates measured in pounds per lane-mile, maintenance actions, initial and subsequent chemical application procedures, and pavement temperature thresholds ranging from below 15°F to above 32°F. Chemical application rates vary significantly by temperature and weather condition, ranging from 150 to 400 pounds per lane-mile for initial operations. The guidelines emphasize pre-wetting solid chemicals, timing applications ahead of traffic rush periods, monitoring pavement conditions, and adjusting application rates based on temperature changes and precipitation intensity. Below 15°F, the guidelines recommend against chemical application in favor of abrasive materials to enhance traction. The document does not establish pricing terms, contract amounts, or renewal periods, functioning instead as technical operational guidance for winter maintenance personnel.